gtk2_ardour/generic_pluginui.cc

   1 /*
   2     Copyright (C) 2000 Paul Davis
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 #ifdef WAF_BUILD
  21 #include "gtk2ardour-config.h"
  22 #endif
  23
  24 #include <climits>
  25 #include <cerrno>
  26 #include <cmath>
  27 #include <string>
  28 #include <vector>
  29
  30 #include "pbd/stl_delete.h"
  31 #include "pbd/xml++.h"
  32 #include "pbd/failed_constructor.h"
  33
  34 #include <gtkmm2ext/click_box.h>
  35 #include <gtkmm2ext/fastmeter.h>
  36 #include <gtkmm2ext/barcontroller.h>
  37 #include <gtkmm2ext/utils.h>
  38 #include <gtkmm2ext/doi.h>
  39 #include <gtkmm2ext/slider_controller.h>
  40
  41 #include "ardour/plugin.h"
  42 #include "ardour/plugin_insert.h"
  43 #include "ardour/session.h"
  44 #ifdef LV2_SUPPORT
  45 #include "ardour/lv2_plugin.h"
  46 #endif
  47
  48 #include "ardour_ui.h"
  49 #include "prompter.h"
  50 #include "plugin_ui.h"
  51 #include "gui_thread.h"
  52 #include "automation_controller.h"
  53
  54 #include "i18n.h"
  55
  56 using namespace std;
  57 using namespace ARDOUR;
  58 using namespace PBD;
  59 using namespace Gtkmm2ext;
  60 using namespace Gtk;
  61
  62 GenericPluginUI::GenericPluginUI (boost::shared_ptr<PluginInsert> pi, bool scrollable)
  63         : PlugUIBase (pi)
  64         , button_table (initial_button_rows, initial_button_cols)
  65         , output_table (initial_output_rows, initial_output_cols)
  66         , hAdjustment(0.0, 0.0, 0.0)
  67         , vAdjustment(0.0, 0.0, 0.0)
  68         , scroller_view(hAdjustment, vAdjustment)
  69         , automation_menu (0)
  70         , is_scrollable(scrollable)
  71 #ifdef LV2_SUPPORT
  72         , _fcb(0)
  73 #endif
  74 {
  75         set_name ("PluginEditor");
  76         set_border_width (10);
  77         //set_homogeneous (false);
  78
  79         pack_start (main_contents, true, true);
  80         settings_box.set_homogeneous (false);
  81
  82         HBox* constraint_hbox = manage (new HBox);
  83         HBox* smaller_hbox = manage (new HBox);
  84         smaller_hbox->set_spacing (4);
  85         Label* combo_label = manage (new Label (_("<span size=\"large\">Presets</span>")));
  86         combo_label->set_use_markup (true);
  87
  88         latency_button.add (latency_label);
  89         latency_button.signal_clicked().connect (sigc::mem_fun (*this, &PlugUIBase::latency_button_clicked));
  90         set_latency_label ();
  91
  92         smaller_hbox->pack_start (latency_button, false, false, 10);
  93         smaller_hbox->pack_start (_preset_combo, false, false);
  94         smaller_hbox->pack_start (_preset_modified, false, false);
  95         smaller_hbox->pack_start (add_button, false, false);
  96         smaller_hbox->pack_start (save_button, false, false);
  97         smaller_hbox->pack_start (delete_button, false, false);
  98         smaller_hbox->pack_start (bypass_button, false, true);
  99
 100         constraint_hbox->set_spacing (5);
 101         constraint_hbox->set_homogeneous (false);
 102
 103         VBox* v1_box = manage (new VBox);
 104         VBox* v2_box = manage (new VBox);
 105         pack_end (plugin_analysis_expander, false, false);
 106         if (!plugin->get_docs().empty()) {
 107                 pack_end (description_expander, false, false);
 108         }
 109
 110         v1_box->pack_start (*smaller_hbox, false, true);
 111         v2_box->pack_start (focus_button, false, true);
 112
 113         main_contents.pack_start (settings_box, false, false);
 114
 115         constraint_hbox->pack_end (*v2_box, false, false);
 116         constraint_hbox->pack_end (*v1_box, false, false);
 117
 118         main_contents.pack_start (*constraint_hbox, false, false);
 119
 120         if (is_scrollable ) {
 121                 scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
 122                 scroller.set_name ("PluginEditor");
 123                 scroller_view.set_name("PluginEditor");
 124                 scroller_view.add (hpacker);
 125                 scroller.add (scroller_view);
 126
 127                 main_contents.pack_start (scroller, true, true);
 128
 129         } else {
 130                 main_contents.pack_start (hpacker, false, false);
 131         }
 132
 133         pi->ActiveChanged.connect (active_connection, invalidator (*this), boost::bind (&GenericPluginUI::processor_active_changed, this, boost::weak_ptr<Processor>(pi)), gui_context());
 134
 135         bypass_button.set_active (!pi->active());
 136
 137         prefheight = 0;
 138         build ();
 139 }
 140
 141 GenericPluginUI::~GenericPluginUI ()
 142 {
 143         if (output_controls.size() > 0) {
 144                 screen_update_connection.disconnect();
 145         }
 146 #ifdef LV2_SUPPORT
 147         free(_fcb);
 148 #endif
 149 }
 150
 151 // Some functions for calculating the 'similarity' of two plugin
 152 // control labels.
 153
 154 static int get_number(string label) {
 155 static const char *digits = "0123456789";
 156 int value = -1;
 157
 158         std::size_t first_digit_pos = label.find_first_of(digits);
 159         if (first_digit_pos != string::npos) {
 160                 // found some digits: there's a number in there somewhere
 161                 stringstream s;
 162                 s << label.substr(first_digit_pos);
 163                 s >> value;
 164         }
 165         return value;
 166 }
 167
 168 static int match_or_digit(char c1, char c2) {
 169         return c1 == c2 || (isdigit(c1) && isdigit(c2));
 170 }
 171
 172 static std::size_t matching_chars_at_head(const string s1, const string s2) {
 173 std::size_t length, n = 0;
 174
 175         length = min(s1.length(), s2.length());
 176         while (n < length) {
 177                 if (!match_or_digit(s1[n], s2[n]))
 178                         break;
 179                 n++;
 180         }
 181         return n;
 182 }
 183
 184 static std::size_t matching_chars_at_tail(const string s1, const string s2) {
 185 std::size_t s1pos, s2pos, n = 0;
 186
 187         s1pos = s1.length();
 188         s2pos = s2.length();
 189         while (s1pos-- > 0 && s2pos-- > 0) {
 190                 if (!match_or_digit(s1[s1pos], s2[s2pos])       )
 191                         break;
 192                 n++;
 193         }
 194         return n;
 195 }
 196
 197 static const guint32 min_controls_per_column = 17, max_controls_per_column = 24;
 198 static const float default_similarity_threshold = 0.3;
 199
 200 void
 201 GenericPluginUI::build ()
 202 {
 203         guint32 i = 0;
 204         guint32 x = 0;
 205         Frame* frame;
 206         Frame* bt_frame;
 207         VBox* box;
 208         int output_row, output_col;
 209         int button_row, button_col;
 210         int output_rows, output_cols;
 211         int button_rows, button_cols;
 212
 213         hpacker.set_spacing (10);
 214
 215         output_rows = initial_output_rows;
 216         output_cols = initial_output_cols;
 217         button_rows = initial_button_rows;
 218         button_cols = initial_button_cols;
 219         output_row = 0;
 220         button_row = 0;
 221         output_col = 0;
 222         button_col = 0;
 223
 224         button_table.set_homogeneous (false);
 225         button_table.set_row_spacings (2);
 226         button_table.set_col_spacings (2);
 227         output_table.set_homogeneous (true);
 228         output_table.set_row_spacings (2);
 229         output_table.set_col_spacings (2);
 230         button_table.set_border_width (5);
 231         output_table.set_border_width (5);
 232
 233         hpacker.set_border_width (10);
 234
 235         bt_frame = manage (new Frame);
 236         bt_frame->set_name ("BaseFrame");
 237         bt_frame->set_label (_("Switches"));
 238         bt_frame->add (button_table);
 239         hpacker.pack_start(*bt_frame, true, true);
 240
 241         box = manage (new VBox);
 242         box->set_border_width (5);
 243         box->set_spacing (1);
 244
 245         frame = manage (new Frame);
 246         frame->set_name ("BaseFrame");
 247         frame->set_label (_("Controls"));
 248         frame->add (*box);
 249         hpacker.pack_start(*frame, true, true);
 250
 251         /* find all ports. build control elements for all appropriate control ports */
 252         std::vector<ControlUI *> cui_controls_list;
 253
 254         for (i = 0; i < plugin->parameter_count(); ++i) {
 255
 256                 if (plugin->parameter_is_control (i)) {
 257
 258                         /* Don't show latency control ports */
 259
 260                         if (plugin->describe_parameter (Evoral::Parameter(PluginAutomation, 0, i)) == X_("latency")) {
 261                                 continue;
 262                         }
 263
 264                         if (plugin->describe_parameter (Evoral::Parameter(PluginAutomation, 0, i)) == X_("hidden")) {
 265                                 continue;
 266                         }
 267
 268                         ControlUI* cui;
 269
 270                         boost::shared_ptr<ARDOUR::AutomationControl> c
 271                                 = boost::dynamic_pointer_cast<ARDOUR::AutomationControl>(
 272                                         insert->control(Evoral::Parameter(PluginAutomation, 0, i)));
 273
 274                         if ((cui = build_control_ui (i, c)) == 0) {
 275                                 error << string_compose(_("Plugin Editor: could not build control element for port %1"), i) << endmsg;
 276                                 continue;
 277                         }
 278
 279                         const std::string param_docs = plugin->get_parameter_docs(i);
 280                         if (!param_docs.empty()) {
 281                                 ARDOUR_UI::instance()->set_tip(cui, param_docs.c_str());
 282                         }
 283
 284                         if (cui->controller || cui->clickbox || cui->combo) {
 285                                 // Get all of the controls into a list, so that
 286                                 // we can lay them out a bit more nicely later.
 287                                 cui_controls_list.push_back(cui);
 288                         } else if (cui->button) {
 289
 290                                 if (!is_scrollable && button_row == button_rows) {
 291                                         button_row = 0;
 292                                         if (++button_col == button_cols) {
 293                                                 button_cols += 2;
 294                                                 button_table.resize (button_rows, button_cols);
 295                                         }
 296                                 }
 297
 298                                 button_table.attach (*cui, button_col, button_col + 1, button_row, button_row+1,
 299                                                      FILL|EXPAND, FILL);
 300                                 button_row++;
 301
 302                         } else if (cui->display) {
 303
 304                                 output_table.attach (*cui, output_col, output_col + 1, output_row, output_row+1,
 305                                                      FILL|EXPAND, FILL);
 306
 307                                 // TODO: The meters should be divided into multiple rows
 308
 309                                 if (++output_col == output_cols) {
 310                                         output_cols ++;
 311                                         output_table.resize (output_rows, output_cols);
 312                                 }
 313                         }
 314                 }
 315         }
 316
 317 #ifdef LV2_SUPPORT
 318         boost::shared_ptr<ARDOUR::LV2Plugin> lv2p = boost::dynamic_pointer_cast<LV2Plugin> (plugin);
 319         if (lv2p) {
 320                 _fcb = (Gtk::FileChooserButton**) malloc(lv2p->patch_count() * sizeof(Gtk::FileChooserButton*));
 321                 for (uint32_t p = 0; p < lv2p->patch_count(); ++p) {
 322                         _fcb[p] = manage (new Gtk::FileChooserButton (Gtk::FILE_CHOOSER_ACTION_OPEN));
 323                         _fcb[p]->signal_file_set().connect (sigc::bind(sigc::mem_fun (*this, &GenericPluginUI::patch_set_file), p));
 324                         lv2p->PatchChanged.connect (*this, invalidator (*this), boost::bind (&GenericPluginUI::patch_changed, this, _1), gui_context());
 325                         // when user cancels file selection the FileChooserButton will display "None"
 326                         // TODO hack away around this..
 327                         if (lv2p->patch_val(p)) {
 328                                 _fcb[p]->set_filename(lv2p->patch_val(p));
 329                         }
 330                         if (lv2p->patch_key(p)) {
 331                                 _fcb[p]->set_title(lv2p->patch_key(p));
 332                                 Gtk::Label* fcl = manage (new Label (lv2p->patch_key(p)));
 333                                 button_table.attach (*fcl, 0, button_cols, button_row, button_row + 1, FILL|EXPAND, FILL);
 334                                 ++button_row;
 335                         } else {
 336                                 _fcb[p]->set_title(_("LV2 Patch"));
 337                         }
 338
 339                         button_table.attach (*_fcb[p], 0, button_cols, button_row, button_row + 1, FILL|EXPAND, FILL);
 340                         ++button_row;
 341                 }
 342         }
 343 #endif
 344
 345         // Iterate over the list of controls to find which adjacent controls
 346         // are similar enough to be grouped together.
 347
 348         string label, previous_label = "";
 349         std::vector<int> numbers_in_labels(cui_controls_list.size());
 350
 351         std::vector<float> similarity_scores(cui_controls_list.size());
 352         float most_similar = 0.0, least_similar = 1.0;
 353
 354         i = 0;
 355         for (vector<ControlUI*>::iterator cuip = cui_controls_list.begin(); cuip != cui_controls_list.end(); ++cuip, ++i) {
 356                 label = (*cuip)->label.get_text();
 357                 numbers_in_labels[i] = get_number(label);
 358
 359                 if (i > 0) {
 360                         // A hand-wavy calculation of how similar this control's
 361                         // label is to the previous.
 362                         similarity_scores[i] =
 363                                 (float) (
 364                                         ( matching_chars_at_head(label, previous_label) +
 365                                           matching_chars_at_tail(label, previous_label) +
 366                                           1
 367                                         )
 368                                 ) / (label.length() + previous_label.length());
 369                         if (numbers_in_labels[i] >= 0) {
 370                                 similarity_scores[i] += (numbers_in_labels[i] == numbers_in_labels[i-1]);
 371                         }
 372                         least_similar = min(least_similar, similarity_scores[i]);
 373                         most_similar  = max(most_similar, similarity_scores[i]);
 374                 } else {
 375                         similarity_scores[0] = 1.0;
 376                 }
 377
 378                 // cerr << "label: " << label << " sim: " << fixed << setprecision(3) << similarity_scores[i] << " num: " << numbers_in_labels[i] << endl;
 379                 previous_label = label;
 380         }
 381
 382
 383         // cerr << "most similar: " << most_similar << ", least similar: " << least_similar << endl;
 384         float similarity_threshold;
 385
 386         if (most_similar > 1.0) {
 387                 similarity_threshold = default_similarity_threshold;
 388         } else {
 389                 similarity_threshold = most_similar - (1 - default_similarity_threshold);
 390         }
 391
 392         // Now iterate over the list of controls to display them, placing an
 393         // HSeparator between controls of less than a certain similarity, and
 394         // starting a new column when necessary.
 395
 396         i = 0;
 397         for (vector<ControlUI*>::iterator cuip = cui_controls_list.begin(); cuip != cui_controls_list.end(); ++cuip, ++i) {
 398
 399                 ControlUI* cui = *cuip;
 400
 401                 if (!is_scrollable) {
 402                         x++;
 403                 }
 404
 405                 if (x > max_controls_per_column || similarity_scores[i] <= similarity_threshold) {
 406                         if (x > min_controls_per_column) {
 407                                 frame = manage (new Frame);
 408                                 frame->set_name ("BaseFrame");
 409                                 frame->set_label (_("Controls"));
 410                                 box = manage (new VBox);
 411                                 box->set_border_width (5);
 412                                 box->set_spacing (1);
 413                                 frame->add (*box);
 414                                 hpacker.pack_start(*frame, true, true);
 415                                 x = 0;
 416                         } else {
 417                                 HSeparator *split = new HSeparator();
 418                                 split->set_size_request(-1, 5);
 419                                 box->pack_start(*split, false, false, 0);
 420                         }
 421
 422                 }
 423                 box->pack_start (*cui, false, false);
 424         }
 425
 426         if (is_scrollable) {
 427                 prefheight = 30 * i;
 428         }
 429
 430         if (box->children().empty()) {
 431                 hpacker.remove (*frame);
 432         }
 433
 434         if (button_table.children().empty()) {
 435                 hpacker.remove (*bt_frame);
 436         }
 437
 438         if (!output_table.children().empty()) {
 439                 frame = manage (new Frame);
 440                 frame->set_name ("BaseFrame");
 441                 frame->set_label(_("Meters"));
 442                 frame->add (output_table);
 443                 hpacker.pack_end (*frame, true, true);
 444         }
 445
 446         output_update ();
 447
 448         output_table.show_all ();
 449         button_table.show_all ();
 450 }
 451
 452 GenericPluginUI::ControlUI::ControlUI ()
 453         : automate_button (X_("")) // force creation of a label
 454 {
 455         automate_button.set_name ("PluginAutomateButton");
 456         ARDOUR_UI::instance()->set_tip (automate_button, _("Automation control"));
 457
 458         /* XXX translators: use a string here that will be at least as long
 459            as the longest automation label (see ::automation_state_changed()
 460            below). be sure to include a descender.
 461         */
 462
 463         set_size_request_to_display_given_text (automate_button, _("Mgnual"), 15, 10);
 464
 465         ignore_change = 0;
 466         display = 0;
 467         button = 0;
 468         clickbox = 0;
 469         meterinfo = 0;
 470 }
 471
 472 GenericPluginUI::ControlUI::~ControlUI()
 473 {
 474         if (meterinfo) {
 475                 delete meterinfo->meter;
 476                 delete meterinfo;
 477         }
 478 }
 479
 480 void
 481 GenericPluginUI::automation_state_changed (ControlUI* cui)
 482 {
 483         /* update button label */
 484
 485         // don't lock to avoid deadlock because we're triggered by
 486         // AutomationControl::Changed() while the automation lock is taken
 487         switch (insert->get_parameter_automation_state (cui->parameter()) & (ARDOUR::Off|Play|Touch|Write)) {
 488         case ARDOUR::Off:
 489                 cui->automate_button.set_label (S_("Automation|Manual"));
 490                 break;
 491         case Play:
 492                 cui->automate_button.set_label (_("Play"));
 493                 break;
 494         case Write:
 495                 cui->automate_button.set_label (_("Write"));
 496                 break;
 497         case Touch:
 498                 cui->automate_button.set_label (_("Touch"));
 499                 break;
 500         default:
 501                 cui->automate_button.set_label (_("???"));
 502                 break;
 503         }
 504 }
 505
 506
 507 bool
 508 GenericPluginUI::integer_printer (char buf[32], Adjustment &adj, ControlUI* cui)
 509 {
 510         float const v = adj.get_value ();
 511
 512         if (cui->scale_points) {
 513                 Plugin::ScalePoints::const_iterator i = cui->scale_points->begin ();
 514                 while (i != cui->scale_points->end() && i->second != v) {
 515                         ++i;
 516                 }
 517
 518                 if (i != cui->scale_points->end ()) {
 519                         snprintf (buf, 32, "%s", i->first.c_str());
 520                         return true;
 521                 }
 522         }
 523
 524         snprintf (buf, 32, "%.0f", v);
 525         return true;
 526 }
 527
 528 bool
 529 GenericPluginUI::midinote_printer (char buf[32], Adjustment &adj, ControlUI* cui)
 530 {
 531         float const v = adj.get_value ();
 532
 533         if (cui->scale_points) {
 534                 Plugin::ScalePoints::const_iterator i = cui->scale_points->begin ();
 535                 while (i != cui->scale_points->end() && i->second != v) {
 536                         ++i;
 537                 }
 538
 539                 if (i != cui->scale_points->end ()) {
 540                         snprintf (buf, 32, "%s", i->first.c_str());
 541                         return true;
 542                 }
 543         }
 544         if (v >= 0 && v <= 127) {
 545                 int mn = rint(v);
 546                 const char notename[12][3] = { "C", "C#", "D", "D#", "E", "F", "F#", "G", "G#", "A", "A#", "B" };
 547                 snprintf (buf, 32, "%s %d", notename[mn%12], (mn/12)-2);
 548         } else {
 549                 snprintf (buf, 32, "%.0f", v);
 550         }
 551         return true;
 552 }
 553
 554 void
 555 GenericPluginUI::print_parameter (char *buf, uint32_t len, uint32_t param)
 556 {
 557         plugin->print_parameter (param, buf, len);
 558 }
 559
 560 GenericPluginUI::ControlUI*
 561 GenericPluginUI::build_control_ui (guint32 port_index, boost::shared_ptr<AutomationControl> mcontrol)
 562 {
 563         ControlUI* control_ui = 0;
 564
 565         Plugin::ParameterDescriptor desc;
 566
 567         plugin->get_parameter_descriptor (port_index, desc);
 568
 569         control_ui = manage (new ControlUI ());
 570         control_ui->combo = 0;
 571         control_ui->control = mcontrol;
 572         control_ui->update_pending = false;
 573         control_ui->label.set_text (desc.label);
 574         control_ui->label.set_alignment (0.0, 0.5);
 575         control_ui->label.set_name ("PluginParameterLabel");
 576         control_ui->port_index = port_index;
 577
 578         control_ui->set_spacing (5);
 579
 580         Gtk::Requisition req (control_ui->automate_button.size_request());
 581
 582         if (plugin->parameter_is_input(port_index)) {
 583
 584                 /* See if there any named values for our input value */
 585                 control_ui->scale_points = plugin->get_scale_points (port_index);
 586
 587                 /* If this parameter is an integer, work out the number of distinct values
 588                    it can take on (assuming that lower and upper values are allowed).
 589                 */
 590                 int const steps = desc.integer_step ? (desc.upper - desc.lower + 1) / desc.step : 0;
 591
 592                 if (control_ui->scale_points && ((steps && int (control_ui->scale_points->size()) == steps) || desc.enumeration)) {
 593
 594                         /* Either:
 595                          *   a) There is a label for each possible value of this input, or
 596                          *   b) This port is marked as being an enumeration.
 597                          */
 598
 599                         std::vector<std::string> labels;
 600                         for (
 601                                 ARDOUR::Plugin::ScalePoints::const_iterator i = control_ui->scale_points->begin();
 602                                 i != control_ui->scale_points->end();
 603                                 ++i) {
 604
 605                                 labels.push_back(i->first);
 606                         }
 607
 608                         control_ui->combo = new Gtk::ComboBoxText();
 609                         set_popdown_strings(*control_ui->combo, labels);
 610                         control_ui->combo->signal_changed().connect(
 611                                 sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::control_combo_changed),
 612                                             control_ui));
 613                         mcontrol->Changed.connect(control_connections, invalidator(*this),
 614                                                   boost::bind(&GenericPluginUI::ui_parameter_changed,
 615                                                               this, control_ui),
 616                                                   gui_context());
 617                         control_ui->pack_start(control_ui->label, true, true);
 618                         control_ui->pack_start(*control_ui->combo, false, true);
 619
 620                         update_control_display(control_ui);
 621
 622                         return control_ui;
 623                 }
 624
 625                 if (desc.toggled) {
 626
 627                         /* Build a button */
 628
 629                         control_ui->button = manage (new ToggleButton ());
 630                         control_ui->button->set_name ("PluginEditorButton");
 631                         control_ui->button->set_size_request (20, 20);
 632
 633                         control_ui->pack_start (control_ui->label, true, true);
 634                         control_ui->pack_start (*control_ui->button, false, true);
 635                         control_ui->pack_start (control_ui->automate_button, false, false);
 636
 637                         control_ui->button->signal_clicked().connect (sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::control_port_toggled), control_ui));
 638                         control_ui->automate_button.signal_clicked().connect (bind (mem_fun(*this, &GenericPluginUI::astate_clicked), control_ui, (uint32_t) port_index));
 639
 640                         mcontrol->Changed.connect (control_connections, invalidator (*this), boost::bind (&GenericPluginUI::toggle_parameter_changed, this, control_ui), gui_context());
 641                         mcontrol->alist()->automation_state_changed.connect (control_connections, invalidator (*this), boost::bind (&GenericPluginUI::automation_state_changed, this, control_ui), gui_context());
 642
 643                         if (plugin->get_parameter (port_index) > 0.5){
 644                                 control_ui->button->set_active(true);
 645                         }
 646
 647                         automation_state_changed (control_ui);
 648
 649                         return control_ui;
 650                 }
 651
 652                 /* create the controller */
 653
 654                 if (mcontrol) {
 655                         control_ui->controller = AutomationController::create(insert, mcontrol->parameter(), mcontrol);
 656                 }
 657
 658                 /* XXX this code is not right yet, because it doesn't handle
 659                    the absence of bounds in any sensible fashion.
 660                 */
 661
 662                 Adjustment* adj = control_ui->controller->adjustment();
 663                 boost::shared_ptr<PluginInsert::PluginControl> pc = boost::dynamic_pointer_cast<PluginInsert::PluginControl> (control_ui->control);
 664
 665                 adj->set_lower (desc.lower);
 666                 adj->set_upper (desc.upper);
 667
 668                 adj->set_step_increment (desc.step);
 669                 adj->set_page_increment (desc.largestep);
 670
 671                 if (desc.integer_step) {
 672                         control_ui->clickbox = new ClickBox (adj, "PluginUIClickBox");
 673                         Gtkmm2ext::set_size_request_to_display_given_text (*control_ui->clickbox, "g9999999", 2, 2);
 674                         if (desc.midinote) {
 675                                 control_ui->clickbox->set_printer (sigc::bind (sigc::mem_fun (*this, &GenericPluginUI::midinote_printer), control_ui));
 676                         } else {
 677                                 control_ui->clickbox->set_printer (sigc::bind (sigc::mem_fun (*this, &GenericPluginUI::integer_printer), control_ui));
 678                         }
 679                 } else {
 680                         //sigc::slot<void,char*,uint32_t> pslot = sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::print_parameter), (uint32_t) port_index);
 681
 682                         control_ui->controller->set_size_request (200, req.height);
 683                         control_ui->controller->set_name (X_("ProcessorControlSlider"));
 684
 685                         control_ui->controller->StartGesture.connect (sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::start_touch), control_ui));
 686                         control_ui->controller->StopGesture.connect (sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::stop_touch), control_ui));
 687
 688                 }
 689
 690                 adj->set_value (plugin->get_parameter (port_index));
 691
 692                 /* XXX memory leak: SliderController not destroyed by ControlUI
 693                    destructor, and manage() reports object hierarchy
 694                    ambiguity.
 695                 */
 696
 697                 control_ui->pack_start (control_ui->label, true, true);
 698                 if (desc.integer_step) {
 699                         control_ui->pack_start (*control_ui->clickbox, false, false);
 700                 } else {
 701                         control_ui->pack_start (*control_ui->controller, false, false);
 702                 }
 703
 704                 control_ui->pack_start (control_ui->automate_button, false, false);
 705                 control_ui->automate_button.signal_clicked().connect (sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::astate_clicked), control_ui, (uint32_t) port_index));
 706
 707                 automation_state_changed (control_ui);
 708
 709                 mcontrol->Changed.connect (control_connections, invalidator (*this), boost::bind (&GenericPluginUI::ui_parameter_changed, this, control_ui), gui_context());
 710                 mcontrol->alist()->automation_state_changed.connect (control_connections, invalidator (*this), boost::bind (&GenericPluginUI::automation_state_changed, this, control_ui), gui_context());
 711
 712                 input_controls.push_back (control_ui);
 713
 714         } else if (plugin->parameter_is_output (port_index)) {
 715
 716                 control_ui->display = manage (new EventBox);
 717                 control_ui->display->set_name ("ParameterValueDisplay");
 718
 719                 control_ui->display_label = manage (new Label);
 720
 721                 control_ui->display_label->set_name ("ParameterValueDisplay");
 722
 723                 control_ui->display->add (*control_ui->display_label);
 724                 Gtkmm2ext::set_size_request_to_display_given_text (*control_ui->display, "-888.8g", 2, 6);
 725
 726                 control_ui->display->show_all ();
 727
 728                 /* set up a meter */
 729                 /* TODO: only make a meter if the port is Hinted for it */
 730
 731                 MeterInfo * info = new MeterInfo(port_index);
 732                 control_ui->meterinfo = info;
 733
 734                 info->meter = new FastMeter (
 735                                 5, 5, FastMeter::Vertical, 0,
 736                                 0x0000aaff,
 737                                 0x008800ff, 0x008800ff,
 738                                 0x00ff00ff, 0x00ff00ff,
 739                                 0xcccc00ff, 0xcccc00ff,
 740                                 0xffaa00ff, 0xffaa00ff,
 741                                 0xff0000ff,
 742                                 ARDOUR_UI::config()->get_MeterBackgroundBot(),
 743                                 ARDOUR_UI::config()->get_MeterBackgroundTop()
 744                                 );
 745
 746                 info->min_unbound = desc.min_unbound;
 747                 info->max_unbound = desc.max_unbound;
 748
 749                 info->min = desc.lower;
 750                 info->max = desc.upper;
 751
 752                 control_ui->vbox = manage (new VBox);
 753                 control_ui->hbox = manage (new HBox);
 754
 755                 control_ui->hbox->set_spacing(1);
 756                 control_ui->vbox->set_spacing(3);
 757
 758                 control_ui->label.set_angle(90);
 759                 control_ui->hbox->pack_start (control_ui->label, false, false);
 760                 control_ui->hbox->pack_start (*info->meter, false, false);
 761
 762                 control_ui->vbox->pack_start (*control_ui->hbox, false, false);
 763
 764                 control_ui->vbox->pack_start (*control_ui->display, false, false);
 765
 766                 control_ui->pack_start (*control_ui->vbox);
 767
 768                 control_ui->meterinfo->meter->show_all();
 769                 control_ui->meterinfo->packed = true;
 770
 771                 output_controls.push_back (control_ui);
 772         }
 773
 774         if (mcontrol) {
 775                 mcontrol->Changed.connect (control_connections, invalidator (*this), boost::bind (&GenericPluginUI::ui_parameter_changed, this, control_ui), gui_context());
 776         }
 777
 778         return control_ui;
 779 }
 780
 781 void
 782 GenericPluginUI::start_touch (GenericPluginUI::ControlUI* cui)
 783 {
 784         cui->control->start_touch (cui->control->session().transport_frame());
 785 }
 786
 787 void
 788 GenericPluginUI::stop_touch (GenericPluginUI::ControlUI* cui)
 789 {
 790         cui->control->stop_touch (false, cui->control->session().transport_frame());
 791 }
 792
 793 void
 794 GenericPluginUI::astate_clicked (ControlUI* cui, uint32_t /*port*/)
 795 {
 796         using namespace Menu_Helpers;
 797
 798         if (automation_menu == 0) {
 799                 automation_menu = manage (new Menu);
 800                 automation_menu->set_name ("ArdourContextMenu");
 801         }
 802
 803         MenuList& items (automation_menu->items());
 804
 805         items.clear ();
 806         items.push_back (MenuElem (S_("Automation|Manual"),
 807                                    sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::set_automation_state), (AutoState) ARDOUR::Off, cui)));
 808         items.push_back (MenuElem (_("Play"),
 809                                    sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::set_automation_state), (AutoState) Play, cui)));
 810         items.push_back (MenuElem (_("Write"),
 811                                    sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::set_automation_state), (AutoState) Write, cui)));
 812         items.push_back (MenuElem (_("Touch"),
 813                                    sigc::bind (sigc::mem_fun(*this, &GenericPluginUI::set_automation_state), (AutoState) Touch, cui)));
 814
 815         automation_menu->popup (1, gtk_get_current_event_time());
 816 }
 817
 818 void
 819 GenericPluginUI::set_automation_state (AutoState state, ControlUI* cui)
 820 {
 821         insert->set_parameter_automation_state (cui->parameter(), state);
 822 }
 823
 824 void
 825 GenericPluginUI::toggle_parameter_changed (ControlUI* cui)
 826 {
 827         float val = cui->control->get_value();
 828
 829         if (!cui->ignore_change) {
 830                 if (val > 0.5) {
 831                         cui->button->set_active (true);
 832                         cui->button->set_name ("PluginEditorButton-active");
 833                 } else {
 834                         cui->button->set_active (false);
 835                         cui->button->set_name ("PluginEditorButton");
 836                 }
 837         }
 838 }
 839
 840 void
 841 GenericPluginUI::ui_parameter_changed (ControlUI* cui)
 842 {
 843         if (!cui->update_pending) {
 844                 cui->update_pending = true;
 845                 Gtkmm2ext::UI::instance()->call_slot (MISSING_INVALIDATOR, boost::bind (&GenericPluginUI::update_control_display, this, cui));
 846         }
 847 }
 848
 849 void
 850 GenericPluginUI::update_control_display (ControlUI* cui)
 851 {
 852         /* XXX how do we handle logarithmic stuff here ? */
 853
 854         cui->update_pending = false;
 855
 856         float val = cui->control->get_value();
 857
 858         cui->ignore_change++;
 859
 860         if (cui->combo && cui->scale_points) {
 861                 for (ARDOUR::Plugin::ScalePoints::iterator it = cui->scale_points->begin(); it != cui->scale_points->end(); ++it) {
 862                         if (it->second == val) {
 863                                 cui->combo->set_active_text(it->first);
 864                                 break;
 865                         }
 866                 }
 867         } else if (cui->button) {
 868
 869                 if (val > 0.5) {
 870                         cui->button->set_active (true);
 871                 } else {
 872                         cui->button->set_active (false);
 873                 }
 874         }
 875
 876         if( cui->controller ) {
 877             cui->controller->display_effective_value();
 878         }
 879
 880
 881         /*} else {
 882                 if (cui->logarithmic) {
 883                         val = log(val);
 884                 }
 885                 if (val != cui->adjustment->get_value()) {
 886                         cui->adjustment->set_value (val);
 887                 }
 888         }*/
 889         cui->ignore_change--;
 890 }
 891
 892 void
 893 GenericPluginUI::control_port_toggled (ControlUI* cui)
 894 {
 895         cui->ignore_change++;
 896         const bool active = cui->button->get_active();
 897         if (active) {
 898                 cui->button->set_name ("PluginEditorButton-active");
 899         } else {
 900                 cui->button->set_name ("PluginEditorButton");
 901         }
 902         insert->automation_control (cui->parameter())->set_value (active);
 903         cui->ignore_change--;
 904 }
 905
 906 void
 907 GenericPluginUI::control_combo_changed (ControlUI* cui)
 908 {
 909         if (!cui->ignore_change && cui->scale_points) {
 910                 string value = cui->combo->get_active_text();
 911                 insert->automation_control (cui->parameter())->set_value ((*cui->scale_points)[value]);
 912         }
 913 }
 914
 915 bool
 916 GenericPluginUI::start_updating (GdkEventAny*)
 917 {
 918         if (output_controls.size() > 0 ) {
 919                 screen_update_connection.disconnect();
 920                 screen_update_connection = ARDOUR_UI::instance()->SuperRapidScreenUpdate.connect
 921                         (sigc::mem_fun(*this, &GenericPluginUI::output_update));
 922         }
 923         return false;
 924 }
 925
 926 bool
 927 GenericPluginUI::stop_updating (GdkEventAny*)
 928 {
 929         for (vector<ControlUI*>::iterator i = input_controls.begin(); i != input_controls.end(); ++i) {
 930                 (*i)->controller->stop_updating ();
 931         }
 932
 933         if (output_controls.size() > 0 ) {
 934                 screen_update_connection.disconnect();
 935         }
 936
 937         return false;
 938 }
 939
 940 void
 941 GenericPluginUI::output_update ()
 942 {
 943         for (vector<ControlUI*>::iterator i = output_controls.begin(); i != output_controls.end(); ++i) {
 944                 float val = plugin->get_parameter ((*i)->port_index);
 945                 char buf[32];
 946                 snprintf (buf, sizeof(buf), "%.2f", val);
 947                 (*i)->display_label->set_text (buf);
 948
 949                 /* autoscaling for the meter */
 950                 if ((*i)->meterinfo && (*i)->meterinfo->packed) {
 951
 952                         if (val < (*i)->meterinfo->min) {
 953                                 if ((*i)->meterinfo->min_unbound)
 954                                         (*i)->meterinfo->min = val;
 955                                 else
 956                                         val = (*i)->meterinfo->min;
 957                         }
 958
 959                         if (val > (*i)->meterinfo->max) {
 960                                 if ((*i)->meterinfo->max_unbound)
 961                                         (*i)->meterinfo->max = val;
 962                                 else
 963                                         val = (*i)->meterinfo->max;
 964                         }
 965
 966                         if ((*i)->meterinfo->max > (*i)->meterinfo->min ) {
 967                                 float lval = (val - (*i)->meterinfo->min) / ((*i)->meterinfo->max - (*i)->meterinfo->min) ;
 968                                 (*i)->meterinfo->meter->set (lval );
 969                         }
 970                 }
 971         }
 972 }
 973
 974 #ifdef LV2_SUPPORT
 975
 976 void
 977 GenericPluginUI::patch_set_file (uint32_t p)
 978 {
 979         boost::shared_ptr<ARDOUR::LV2Plugin> lv2p = boost::dynamic_pointer_cast<LV2Plugin> (plugin);
 980         lv2p->patch_set(p, _fcb[p]->get_filename ().c_str());
 981 }
 982
 983 void
 984 GenericPluginUI::patch_changed (uint32_t p)
 985 {
 986         boost::shared_ptr<ARDOUR::LV2Plugin> lv2p = boost::dynamic_pointer_cast<LV2Plugin> (plugin);
 987         _fcb[p]->set_filename(lv2p->patch_val(p));
 988 }
 989
 990 #endif